Lamp



FIG. 1 is a perspective view of a lamp showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines showing portions of the lamp depict unclaimed portions of the claimed design and form no part of the claimed design. The oblique line shading shown in the drawings indicates a transparent or translucent surface. The portions that would be visible behind the transparent or translucent surface are omitted for a clear disclosure of the surface configuration. No claim is made to any element inside or behind the transparent or translucent surface. 

CLAIM The ornamental design for a lamp, as shown and described. 